list1 = [4, 3, 4, -5, 2, 6, 1, -2, 0, 3, 5, 20, -7, 4, 3, 1]
list2 = []

for x in range(0, 2*list1[0]+1):
    list2.append(list1.pop(0))

print(list1,list2)
